10805420 has 12 divisors (see below), whose sum is σ = 22691424. Its totient is φ = 4322160.

The previous prime is 10805413. The next prime is 10805467. The reversal of 10805420 is 2450801.

10805420 is nontrivially palindromic in base 9.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 540271 = 10805420 / (1 + 0 + 8 + 0 + 5 + 4 + 2 + 0).

It is a zygodrome in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 10805392 and 10805401.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 270116 + ... + 270155.

It is an arithmetic number, because the mean of its divisors is an integer number (1890952).

Almost surely, 2^10805420 is an apocalyptic number.

10805420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10805420 is an abundant number, since it is smaller than the sum of its proper divisors (11886004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10805420 is a wasteful number, since it uses less digits than its factorization.

10805420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540280 (or 540278 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 10805420 is about 3287.1598683362. The cubic root of 10805420 is about 221.0788604951.

The spelling of 10805420 in words is "ten million, eight hundred five thousand, four hundred twenty".